Nick Cave has shared his new single ‘Letter to Cynthia’ in full online – listen to it below.The track originally appears on Cave and Warren Ellis‘ new seven-inch release titled ‘Grief’, based on a letter sent to Cave’s Red Hand Files website.‘Letter To Cynthia’ appears alongside another song, ‘Song For Cynthia’, and both tracks were inspired by a question a fan called Cynthia sent to The Red Hand Files, where Cave responds to letters from his audience.“I have experienced the death of my father,